JSP To Display HTTP Header Info
Below JSP code can be saved into a single jsp file like headers.jsp and can be copied to any apps exploded war folder, just before WEB-INF folder in server, or any other directory where you can access it directly through your browser to get http header info received. This can be used to debug certain issues like SSO related, session related and login related issues.
Example To access the jsp file from browser:
http://Appname.domain.com/Appcontextroot/headers.jsp
<%@ page import="java.util.*" %>
<html>
<head>
<title><%= application.getServerInfo() %></title>
</head>
<body>
<h1>HTTP Request Headers Received</h1>
<table border="1" cellpadding="3" cellspacing="3">
<%
Enumeration eNames = request.getHeaderNames();
while (eNames.hasMoreElements()) {
String name = (String) eNames.nextElement();
String value = normalize(request.getHeader(name));
%>
<tr><td><%= name %></td><td><%= value %></td></tr>
<%
}
%>
</table>
<h3>Extra debug</h3>
<p>User remote: <%=request.getRemoteUser()%></p>
<p>User principal: <%=request.getUserPrincipal()%></p>
</body>
</html>
<%!
private String normalize(String value)
{
StringBuffer sb = new StringBuffer();
for (int i = 0; i < value.length(); i++) {
char c = value.charAt(i);
sb.append(c);
if (c == ';')
sb.append("<br>");
}
return sb.toString();
}
%>
In case of any ©Copyright or missing credits issue please check CopyRights page for faster resolutions.